Wash feet daily with soap and water; dry thoroughly, especially between toes
Keep feet dry; change socks at least once daily (or more if you sweat)
Wear breathable shoes; rotate shoes to let them dry fully between wears
Use an over-the-counter antifungal: terbinafine, butenafine, clotrimazole, miconazole, or ketoconazole
Apply antifungal as directed to clean, dry skin (continue for the full course, even if symptoms improve)
Treat the surrounding skin and between toes if directed on the product label
Use antifungal powder or spray in shoes and on feet to reduce moisture and recurrence
Disinfect or replace socks and consider disinfecting shoes (follow product instructions)
Avoid walking barefoot in shared areas (showers, locker rooms); wear sandals
Don’t share towels, socks, or footwear
Keep nails trimmed and clean if nail fungus is also present; use appropriate nail-specific treatment
See a clinician if there is no improvement after 1–2 weeks of proper OTC treatment, symptoms worsen, severe pain/swelling occurs, or you have diabetes/immunosuppression
Seek urgent care if you develop signs of skin infection (spreading redness, warmth, pus, fever)